A custom-free precise extracorporeal fenestrated aortic stent

Abstract

The invention discloses a non-customizing accurate in vitro windowing aorta stent. The non-customizing accurate in vitro windowing aorta stent comprises a metal stent net and a covering membrane, wherein the metal stent net is a pipe-shaped body; the shape and the size of meshes of the metal stent net are the same; the covering membrane is formed by airtight piling and arraying of a plurality of elastic covering pieces which are arranged in an array in a head and tail manner; and the covering membrane is covered on the metal stent; and different marks are mint-marked on each covering piece. The non-customizing accurate in vitro windowing aorta stent disclosed by the invention does not need to be customized in advance, and medical staff can perform rapid and accurate windowing according to requirements in the operation process.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a custom-free precision extracorporeal fenestrated aortic stent. Background technique [0002] Dilated aortic diseases, including aortic aneurysm and aortic dissection. Clinically, aortic dilated disease is a very dangerous vascular disease. Once aortic dilated disease occurs, corresponding treatment should be carried out as soon as possible. At present, the minimally invasive interventional therapy technology using the principle of intracavitary isolation is widely used. It uses a set of delivery system with a small diameter to deliver the compressed aortic stent with film to the diseased aortic stent. Accurate release after the position of the artery. The aortic stent covers the diseased aorta and forms a new blood flow channel; after the diseased aorta loses blood supply, the residual blood in the diseased aorta gradually organizes and forms a thrombus until it gradually retur...

AI Technical Summary

Problems solved by technology

During the clinical operation, some doctors choose to temporarily open the window on the covered stent according to the patient's condition. Due to the temporary opening of the window, the position of the window will be inaccurate or the size is not easy to control. Due to the difficulty of opening the window, the control is not good Sometimes the entire covered stent will be destroyed; some of them are pre-ordered with fenestrated stents according to the patient's condition. Although this can achieve precise fenestration, it will inevitably lead to prolongation of operation time, thus giving Inconvenience to doctors and patients, especially for critically ill patients, will lead to life-threatening

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